CN216131212U - Be applied to fine-bar bolt of precision equipment - Google Patents
Be applied to fine-bar bolt of precision equipment Download PDFInfo
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- CN216131212U CN216131212U CN202121478999.2U CN202121478999U CN216131212U CN 216131212 U CN216131212 U CN 216131212U CN 202121478999 U CN202121478999 U CN 202121478999U CN 216131212 U CN216131212 U CN 216131212U
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- bolt
- thin rod
- hole
- rod bolt
- precision equipment
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Abstract
The utility model discloses a thin rod bolt applied to precision equipment, which is provided with a bolt head and a thread body, wherein a hexagon socket for applying force during operation is arranged in the bolt head, and an anti-bending structure for preventing the thread body from bending under the operation of processing the thread body is arranged on the thin rod bolt. The anti-bending structure is that a supporting hole with a certain length is arranged on one side of the thread body close to the bolt head and communicated with the hexagon socket hole. The anti-bending structure of the thin rod bolt can enable the threaded body to have the strength of resisting the turning external force when the threaded body is turned, so that the problem of stress bending of the threaded body is avoided, and the processing difficulty of the bolt is further reduced. The cross disassembly hole that has simultaneously can choose for use cross bottle opener cooperation cross disassembly hole to dismantle this thin rod bolt after hexagonal hole inner wall wearing and tearing in, can not effectual dismantlement after having solved this kind of thin rod bolt wearing and tearing, and make certain part or whole equipment condemned problem.
Description
Technical Field
The utility model relates to the technical field of precision equipment, in particular to a thin rod bolt applied to precision equipment.
Background
Precision equipment generally refers to equipment with higher assembly precision, and the equipment generally has smaller size, such as products in different fields of detection equipment, aeromodelling and the like. For the equipment, the size of each assembled part and the specification of the connecting piece are small due to the small size. The connecting piece uses bolts with a thin rod structure in a large number, and the bolts generally have small diameters and long lengths, so that the bolts can be conveniently matched with parts with small specifications to be assembled. When the bolt is machined, the blank is turned to be of a smaller diameter due to the fact that the thread part of the bolt needs to receive a larger external turning force, threads are turned on the circumferential surface of the bolt, and in the continuous machining process, the thread part is suspended and bears the larger external turning force, so that the thread part is easy to bend and deform, and therefore the machining difficulty and the machining cost for the workpiece are high.
Disclosure of Invention
In view of the above problems, the present invention is directed to a thin rod bolt applied to precision equipment, which has an anti-bending structure, so that when a threaded body is turned, the threaded body has a strength to resist external turning force, and further, the problem of forced bending of the threaded body is avoided, so that the difficulty in processing the bolt is further reduced.
In order to achieve the purpose, the technical scheme adopted by the utility model is as follows: the utility model provides a be applied to thin pole bolt of precision equipment, thin pole bolt has bolt head and thread body, the hexagon socket that has the operation application of force in the bolt head be equipped with on the thin pole bolt processing under the thread body operation, prevent the crooked anti-bending structure of thread body.
Preferably, the anti-bending structure is a support hole which is formed on one side of the screw body close to the bolt head and is communicated with the hexagon socket hole by a certain length.
Preferably, the support hole has a tapered structure in which an inner diameter thereof gradually decreases toward an outer end of the screw body.
Preferably, a cross-shaped dismounting hole is formed in the bottom surface of the inner hexagonal hole.
The utility model has the beneficial effects that: the anti-bending structure of the thin rod bolt can enable the threaded body to have the strength of resisting the turning external force when the threaded body is turned, so that the problem of stress bending of the threaded body is avoided, and the processing difficulty of the bolt is further reduced. The cross disassembly hole that has simultaneously can choose for use cross bottle opener cooperation cross disassembly hole to dismantle this thin rod bolt after hexagonal hole inner wall wearing and tearing in, can not effectual dismantlement after having solved this kind of thin rod bolt wearing and tearing, and make certain part or whole equipment condemned problem.
Drawings
FIG. 1 is a schematic view of the overall structure of the thin rod bolt of the present invention.
Fig. 2 is a partial cross-sectional view of fig. 1 of the present invention.
Fig. 3 is a left side view of fig. 2 in accordance with the present invention.
FIG. 4 is a schematic view of the cut and filled support hole of the present invention.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following further describes the technical solution of the present invention with reference to the drawings and the embodiments.
Referring to fig. 1 to 4, the thin rod bolt 1 for precision equipment has a bolt head 11 and a threaded body 12, and the bolt head 11 has a hexagonal socket 11a for applying force. Specifically, the thin rod bolt has a smaller diameter thread body 12 and a longer overall length, and is preferably used for small-sized high-precision equipment such as precision instruments and aeromodelling. The thin bar bolt is usually obtained by turning a blank to a certain diameter of the bolt head 11 and then further turning the part of the threaded body 12. Because the turning operation has a large turning acting force, when the thread turning operation is performed on the surface of the longer and thinner thread body 12, the whole thread body 12 is easily stressed and bent, so that the thin rod bolt is scrapped, and the machining difficulty and the production cost are large. Therefore, in order to solve this problem, the thin rod bolt 1 is provided with a bending prevention structure for preventing the body of the screw body 12 from bending in the operation of machining the screw body 12. Through the anti-bending structure, the threaded body 12 has the strength of resisting the turning external force when the threaded body 12 is turned, so that the problem of stress bending of the threaded body is avoided, and the processing difficulty of the bolt is further reduced.
Specifically, as shown in fig. 2, the bending prevention structure is formed by a support hole 12a having a predetermined length and penetrating the hexagonal socket 11a on the side of the screw body 12 close to the bolt head 11. When the turning operation is performed on the threaded body 12, the bolt head 11 is tightly clamped by a clamp of a lathe, a support rod (not shown in the figure) which is arranged on the lathe in a matched and penetrating mode in the support hole 12a is arranged on the lathe to support the suspended threaded body 12 for a certain length, the suspended length of the threaded body 12 and the strength of resisting the turning external force are reduced, and the problem that the threaded body 12 is stressed and bent during the turning operation is solved. The support hole 12a also has another advantage that: after the thread on the screw body 12 is machined, the support hole 12a may be press-filled with a cut (shown as 100 in fig. 4) at the position of the hexagon socket 11a of the bolt head 11 when machining the hexagon socket 11a, the problem that the cut is not easily discharged is solved and utilized, and the screw body 12 may be further lifted after the support hole 12a is filled.
In order to avoid the influence of the support hole 12a on the strength of the screw body 12 in an unfilled state and facilitate smooth filling of the support hole 12a by cutting, the support hole 12a has a tapered structure in which the inner diameter gradually decreases toward the outer end of the screw body 12. The tapered structure reduces the influence of the support hole 12a on the strength of the screw body 12 which is gradually far away, so that the inner diameter of the support hole 12a is gradually reduced, and the wall thickness of the screw body 12 at the support hole 12a is gradually increased, so as to ensure the strength of the screw body 12 at the side far away from the bolt head 11.
Because this kind of slender rod bolt whole diameter is less, consequently leads to hexagon socket 11 a's overall structure to be close with circular, in order to avoid dismantling the wearing and tearing of in-process hexagon socket 11a inner wall for a long time and cause the problem that can not dismantle this slender rod bolt, the cross dismantlement hole 11b has been seted up on hexagon socket 11a bottom surface. After hexagonal hole 11a inner wall wearing and tearing in, can choose for use cross bottle opener cooperation cross dismantlement hole 11b to dismantle this thin rod bolt, can not effectual dismantlement after having solved this type of thin rod bolt wearing and tearing, and make certain part or whole equipment condemned problem.
The principle of the utility model is as follows: the anti-bending structure of the thin rod bolt can enable the threaded body to have the strength of resisting the turning external force when the threaded body is turned, so that the problem of stress bending of the threaded body is avoided, and the processing difficulty of the bolt is further reduced. The cross disassembly hole that has simultaneously can choose for use cross bottle opener cooperation cross disassembly hole to dismantle this thin rod bolt after hexagonal hole inner wall wearing and tearing in, can not effectual dismantlement after having solved this kind of thin rod bolt wearing and tearing, and make certain part or whole equipment condemned problem.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (4)
1. The utility model provides a thin rod bolt for precision equipment, thin rod bolt (1) has bolt head (11) and screw body (12), hexagonal socket (11a) that have the operation application of force in bolt head (11) be equipped with on thin rod bolt (1) and process under screw body (12) operation, prevent the crooked anti-bending structure of screw body (12) body.
2. The slim bolt for precision equipment according to claim 1, wherein: the anti-bending structure is that a support hole (12a) with a certain length is formed on one side of the thread body (12) close to the bolt head (11) and communicated with the hexagon socket hole (11 a).
3. The slim bolt for precision equipment according to claim 2, wherein: the support hole (12a) is formed in a tapered structure in which the inner diameter gradually decreases toward the outer end of the screw body (12).
4. The slim bolt for precision equipment according to claim 3, wherein: the bottom surface of the hexagon socket hole (11a) is provided with a cross-shaped dismounting hole (11 b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121478999.2U CN216131212U (en) | 2021-07-01 | 2021-07-01 | Be applied to fine-bar bolt of precision equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121478999.2U CN216131212U (en) | 2021-07-01 | 2021-07-01 | Be applied to fine-bar bolt of precision equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216131212U true CN216131212U (en) | 2022-03-25 |
Family
ID=80767021
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121478999.2U Active CN216131212U (en) | 2021-07-01 | 2021-07-01 | Be applied to fine-bar bolt of precision equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216131212U (en) |
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2021
- 2021-07-01 CN CN202121478999.2U patent/CN216131212U/en active Active
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